Tootfinder

Thales arms maker delivers new missiles to Ukraine designed to take out Russian drones: https://benborges.xyz/2025/10/07/thales-arms-maker-delivers-new.html

Building High-Quality Datasets for Portuguese LLMs: From Common Crawl Snapshots to Industrial-Grade Corpora
Thales Sales Almeida, Rodrigo Nogueira, Helio Pedrini
https://arxiv.org/abs/2509.08824

Building High-Quality Datasets for Portuguese LLMs: From Common Crawl Snapshots to Industrial-Grade Corpora
The performance of large language models (LLMs) is deeply influenced by the quality and composition of their training data. While much of the existing work has centered on English, there remains a gap in understanding how to construct effective training corpora for other languages. We explore scalable methods for building web-based corpora for LLMs. We apply them to build a new 120B token corpus in Portuguese that achieves competitive results to an industrial-grade corpus. Using a continual pre…

Evaluating LLM-Generated Legal Explanations for Regulatory Compliance in Social Media Influencer Marketing
Haoyang Gui, Thales Bertaglia, Taylor Annabell, Catalina Goanta, Tjomme Dooper, Gerasimos Spanakis
https://arxiv.org/abs/2510.08111

Evaluating LLM-Generated Legal Explanations for Regulatory Compliance in Social Media Influencer Marketing
The rise of influencer marketing has blurred boundaries between organic content and sponsored content, making the enforcement of legal rules relating to transparency challenging. Effective regulation requires applying legal knowledge with a clear purpose and reason, yet current detection methods of undisclosed sponsored content generally lack legal grounding or operate as opaque "black boxes". Using 1,143 Instagram posts, we compare gpt-5-nano and gemini-2.5-flash-lite under three prompting str…

Self-interacting dark matter in the center of a Local Group dwarf galaxy and its satellites
Thales A. Gutcke, Giulia Despali, Stephanie O'Neil, Mark Vogelsberger, Azadeh Fattahi, David B. Sanders
https://arxiv.org/abs/2510.05258

Self-interacting dark matter in the center of a Local Group dwarf galaxy and its satellites
We present a detailed comparison of a Local Group dwarf galaxy analogue evolved in two cosmological models: the standard $Λ$CDM and a self-interacting dark matter (SIDM) model with a velocity-dependent cross-section. Both simulations are run with the high-resolution, hydrodynamical LYRA galaxy formation model, allowing us to explore the global and substructure properties of the dwarf in a consistent context. While the overall halo growth, final mass, and subhalo mass functions remain largely u…

Elliptical Wilson loops in ${\cal N}=4$ Super Yang-Mills
Thales Azevedo, Alfonso Ballon-Bayona, Leonardo Pazito
https://arxiv.org/abs/2509.04355 https://ar…

Elliptical Wilson loops in ${\cal N}=4$ Super Yang-Mills
We investigate elliptical Wilson loops in ${\cal N}=4$ Super Yang--Mills theory at weak and strong coupling for small values of the eccentricity. We obtain analytical results for the vacuum expectation value of the Wilson loop in the form of a series in the eccentricity parameter. At weak coupling, we use perturbation theory in ${\cal N}=4$ Super Yang--Mills. At strong coupling, we use the AdS/CFT correspondence, which maps the Wilson loop to the minimal-area worldsheet of an open string in AdS…

Plasmonic metamaterial time crystal
Tingwen Guo, Jules Sueiro, Gian Marcello Andolina, Artem Levchuk, Stefano Ponzoni, Romain Grasset, Donald Monthe, Ian Aupiais, Dmitri Daineka, Javier Briatico, Thales VAG de Oliveira, Alexey Ponomaryov, Atiqa Arshad, Arjun Karimbana-Kandy, Gulloo Lal Prajapati, Igor Ilyakov, Jan-Christoph Deinert, Luca Perfetti, Marco Schiro, Yannis Laplace

Plasmonic metamaterial time crystal
Periodically driven optical materials and metamaterials have recently emerged as a promising platform for realizing photonic time crystals (PTCs) -systems whose optical properties are strongly and periodically modulated on time scales comparable to the optical cycle of light. These time-varying structures are the temporal counterparts of spatial photonic crystals (SPCs), for which a large and periodic dielectric contrast is achieved spatially on wavelength scales. Just as SPCs have revolutioniz…

Crosslisted article(s) found for cs.AI. https://arxiv.org/list/cs.AI/new
[3/5]:
- BLUEX Revisited: Enhancing Benchmark Coverage with Automatic Captioning
Jo\~ao Guilherme Alves Santos, Giovana Kerche Bon\'as, Thales Sales Almeida

The Entangled Feedback Impacts of Supernovae in Coarse- versus High-Resolution Galaxy Simulations
Eric Zhang, Laura V. Sales, Thales A. Gutcke, Yunwei Deng, Hui Li, R\"udiger Pakmor, Federico Marinacci, Volker Springel, Mark Vogelsberger, Paul Torrey, Boyuan Liu, Rahul Kannan, Aaron Smith, Greg L. Bryan
https://arxiv.org/abs/2510.0243…

The Entangled Feedback Impacts of Supernovae in Coarse- versus High-Resolution Galaxy Simulations
It is often understood that supernova (SN) feedback in galaxies is responsible for regulating star formation and generating gaseous outflows. However, a detailed look at their effect on the local interstellar medium (ISM) on small mass scales in simulations shows that these processes proceed in clearly distinct channels. We demonstrate this finding in two independent simulations with solar-mass resolution, LYRA and RIGEL, of an isolated dwarf galaxy. Focusing on the immediate environment surrou…

Label Uncertainty for Ultrasound Segmentation
Malini Shivaram, Gautam Rajendrakumar Gare, Laura Hutchins, Jacob Duplantis, Thomas Deiss, Thales Nogueira Gomes, Thong Tran, Keyur H. Patel, Thomas H Fox, Amita Krishnan, Deva Ramanan, Bennett DeBoisblanc, Ricardo Rodriguez, John Galeotti
https://arxiv.org/abs/2508.15635

Label Uncertainty for Ultrasound Segmentation
In medical imaging, inter-observer variability among radiologists often introduces label uncertainty, particularly in modalities where visual interpretation is subjective. Lung ultrasound (LUS) is a prime example-it frequently presents a mixture of highly ambiguous regions and clearly discernible structures, making consistent annotation challenging even for experienced clinicians. In this work, we introduce a novel approach to both labeling and training AI models using expert-supplied, per-pixe…

BLUEX Revisited: Enhancing Benchmark Coverage with Automatic Captioning
Jo\~ao Guilherme Alves Santos, Giovana Kerche Bon\'as, Thales Sales Almeida
https://arxiv.org/abs/2508.21294

BLUEX Revisited: Enhancing Benchmark Coverage with Automatic Captioning
With the growing capabilities of Large Language Models (LLMs), there is an increasing need for robust evaluation methods, especially in multilingual and non-English contexts. We present an updated version of the BLUEX dataset, now including 2024-2025 exams and automatically generated image captions using state-of-the-art models, enhancing its relevance for data contamination studies in LLM pretraining. Captioning strategies increase accessibility to text-only models by more than 40%, producing …

KoopMotion: Learning Almost Divergence Free Koopman Flow Fields for Motion Planning
Alice Kate Li, Thales C Silva, Victoria Edwards, Vijay Kumar, M. Ani Hsieh
https://arxiv.org/abs/2509.09074

KoopMotion: Learning Almost Divergence Free Koopman Flow Fields for Motion Planning
In this work, we propose a novel flow field-based motion planning method that drives a robot from any initial state to a desired reference trajectory such that it converges to the trajectory's end point. Despite demonstrated efficacy in using Koopman operator theory for modeling dynamical systems, Koopman does not inherently enforce convergence to desired trajectories nor to specified goals -- a requirement when learning from demonstrations (LfD). We present KoopMotion which represents motion f…

Biological Crowding Annihilates Terahertz Transmission Nonlinearity in Aqueous Protein Solutions
Ellen M. Adams, Igor Ilyakov, Manthan Raj, Daniel Dornbusch, Thales V. A. G. de Oliveira, Atiqa Arshad, Gulloo Lal Prajapati, Alexey Ponomaryov, Jan-Christop Deinert
https://arxiv.org/abs/2509.18701

Tension between string amplitude prescriptions with presumed spacetime supersymmetry
Thales Azevedo, Alessandro Georgoudis, Renann Lipinski Jusinskas, Sitender Pratap Kashyap
https://arxiv.org/abs/2509.15111

Tension between string amplitude prescriptions with presumed spacetime supersymmetry
We analyze an alternative prescription for computing tree level scattering amplitudes in the pure spinor superstring. Proposed by Berkovits, and inspired by an earlier work by Lee and Siegel, it bypasses the traditional ghost number three measure of the pure spinor ghosts, $\langleλ^3 θ^5\rangle$=1, arguably simplifying the calculation. However, direct computations using the free field OPEs of the target superspace CFT fail to reproduce the expected $\textrm{SL}(2,\mathbb{C})$ invariance of t…

BRoverbs -- Measuring how much LLMs understand Portuguese proverbs
Thales Sales Almeida, Giovana Kerche Bon\'as, Jo\~ao Guilherme Alves Santos
https://arxiv.org/abs/2509.08960

BRoverbs -- Measuring how much LLMs understand Portuguese proverbs
Large Language Models (LLMs) exhibit significant performance variations depending on the linguistic and cultural context in which they are applied. This disparity signals the necessity of mature evaluation frameworks that can assess their capabilities in specific regional settings. In the case of Portuguese, existing evaluations remain limited, often relying on translated datasets that may not fully capture linguistic nuances or cultural references. Meanwhile, native Portuguese-language dataset…